Prceparationibus •

477

CRYSTALLI MONTAN^

PRiEPARATlO.

Cryftallus in fbco acriter Incenfa candefi.it , ut re-foluta , & quafi calcinara in frultuJa diililiat; terarurin pulverem, ac Isevigetur perfecle fupra porphyri-tem , idelt dam particula dentibus pieiTa ItridorernVtoa pariat.

Fragmenta pretiofa ,Siiices Fluviatiles,Lapis Lazuli,

& alii lapides duriores eandem prseparationem poflu-lant,

LIMATUR& MARTIS

PRJEtlHAHO.

Malatur fupra Iapidem porphyritem, ufque ad per-fe&arn lxvigationem.

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